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ASTM A1009-05(2010)

Current Reaffirmation

Standard Specification for Soft Magnetic MnZn Ferrite Core Materials for Transformer and Inductor Applications

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1.1 This specification covers the requirements to which the specified grades of soft magnetic manganese zinc (MnZn) ferrite materials shall conform. Cores made from these materials are used primarily in power transformers and filter inductors.

1.2 The values stated in customary (cgs-emu and inch-pounds) units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.


This specification deals with soft magnetic manganese zinc ferrite core materials for high frequency power transformer and filter inductor applications. Standard types of both power transformer and filter inductor material are defined. For power transformer use, there are five types defined by their maximum core loss density and minimum saturation flux density. For filter inductor materials, three types are defined based on their inductance permeability. Apart from magnetic property requirements, dimensional tolerances and workmanship requirements are defined in this specification.


SDO ASTM: ASTM International
Document Number A1009
Publication Date Nov. 1, 2010
Language en - English
Page Count 3
Revision Level 05(2010)
Supercedes
Committee A06.02
Publish Date Document Id Type View
Nov. 1, 2024 A1009-18R24E01 Revision
Oct. 1, 2018 A1009-18 Revision
Nov. 1, 2005 A1009-05 Revision
May 10, 2000 A1009-00 Revision
Nov. 1, 2010 A1009-05R10 Reaffirmation